00:01
Hello students, the question asked is make the following dilution series starting with buffer b as the stock solution.
00:14
So buffer b is a stock solution and we have to make three one -tenth dilutions followed by a one, one half dilution.
00:42
All dilutions should be made in a test tube of total volume of 10 ml.
00:55
Since we have to make three one -tenth dilutions and one, one half dilution, so we will need four test tubes in which we will do the dilutions and the total volume of test tubes must be 10 ml.
01:13
So what we will do in order to have a one -tenth dilution, we will take one ml, one ml of buffer b and put it in nine ml water so that the total volume will be 10 ml and which it will give us one -tenth dilution here.
01:39
Again, from this, we will take one ml and add nine ml of water to get total volume equal to 10 ml and here also we get one -tenth dilution.
01:54
Again same we will take one ml of this solution and add nine ml of water to get total volume 10 ml and here one -tenth dilution.
02:09
Now three one -tenth dilutions we have done...